When school students took to the streets in London and other cities this week it was a protest unlike any other.
Its target: an algorithm they said had threatened their futures.
On Tech Tent this week, we look at whether the exam grades fiasco in the UK signals a global crisis for trust in algorithms.
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It was a uniquely difficult challenge: how to determine the exam grades on which university places depend when the exams had to be cancelled.
The answer? An algorithm, in effect a statistical recipe which is fed data.
In this case, the data was both the prior performance of a school and the ranking given this